package com.invalid.android.BtInput;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.Socket;

import android.annotation.TargetApi;
import android.app.ActionBar;
import android.app.Activity;
import android.app.AlertDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.graphics.Rect;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Display;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.view.inputmethod.EditorInfo;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

/**
 * This is the main Activity that displays the current chat session.
 */
public class BluetoothChat extends Activity {
    // Debugging
    private static final String TAG = "BluetoothChat";
    private static final boolean D = true;

    // Message types sent from the BluetoothChatService Handler
    public static final int MESSAGE_STATE_CHANGE = 1;
    public static final int MESSAGE_READ = 2;
    public static final int MESSAGE_WRITE = 3;
    public static final int MESSAGE_DEVICE_NAME = 4;
    public static final int MESSAGE_TOAST = 5;

    // Key names received from the BluetoothChatService Handler
    public static final String DEVICE_NAME = "device_name";
    public static final String DEVICE_ADDRESS = "device_address";
    public static final String TOAST = "toast";

    // Intent request codes
    private static final int REQUEST_CONNECT_DEVICE_SECURE = 1;
    private static final int REQUEST_CONNECT_DEVICE_INSECURE = 2;
    private static final int REQUEST_ENABLE_BT = 3;
    
    
   
    // Layout Views
    private ListView mConversationView;
    private EditText mOutEditText;
    private Button mSendButton;

    // Name of the connected device
    private String mConnectedDeviceName = null;
    // Array adapter for the conversation thread
    private ArrayAdapter<String> mConversationArrayAdapter;
    // String buffer for outgoing messages
    private StringBuffer mOutStringBuffer;
    // Local Bluetooth adapter
    private BluetoothAdapter mBluetoothAdapter = null;
    // Member object for the chat services
    private BluetoothChatService mChatService = null;

    public int mScreenWidth;
    public int mScreenHeight;
    
    IntentFilter btStatusFilter;
    
    //
    private String mDeviceAddr;
    
    private BroadcastReceiver mStateChanged = new BroadcastReceiver() {
		
		@Override
		public void onReceive(Context context, Intent intent) {
			// TODO Auto-generated method stub
			 if (intent.getAction().equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
		            
	             int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR);
	             
	             if (BluetoothAdapter.STATE_ON == state)
	             {
	            	 Log.d(TAG, "state == on");
	             }
	             else if (BluetoothAdapter.STATE_OFF == state)
	             {
	            	 Log.d(TAG, "state == off");
	            	 finish();
	             }
	         }
			
		}
	};

    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
		if (D)
			Log.e(TAG, "+++ ON CREATE +++");
		
		btStatusFilter   = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);
		registerReceiver(mStateChanged, btStatusFilter);

		// Set up the window layout
		setContentView(R.layout.main);

		// Get local Bluetooth adapter
		mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

		// If the adapter is null, then Bluetooth is not supported
		if (mBluetoothAdapter == null) {
			Toast.makeText(this, "Bluetooth is not available",
					Toast.LENGTH_LONG).show();
			finish();
			return;
		}

		Log.d(TAG, "act create");
		startupInjectProcess();
	
    }
    
    @Override
    public void onStart() {
        super.onStart();
        if(D) Log.e(TAG, "++ ON START ++");

        // If BT is not on, request that it be enabled.
        // setupChat() will then be called during onActivityResult
        mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        if (!mBluetoothAdapter.isEnabled()) {
        	
        	//Toast.makeText(this, "please enable your bluetooth device", 3000);        	
        	
           Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
            
        // Otherwise, setup the chat session
        } else {
            if (mChatService == null) setupChat();
        }
    }
    
    @Override
    public void onConfigurationChanged(Configuration newConfig) {
    	// TODO Auto-generated method stub
    	super.onConfigurationChanged(newConfig);
    	 if(D) Log.e(TAG, "+ ON onConfigurationChanged +");
    	 
    	if (newConfig.orientation==Configuration.ORIENTATION_LANDSCAPE) {
            // Nothing need to be done here 
    	//	if (mChatService != null)
    	//		mChatService.updateSize();
         } else {
            // Nothing need to be done here
        //	 if (mChatService != null)
        //		 mChatService.updateSize();
         }
    }

    @Override
    public synchronized void onResume() {
    	String address;
    	
        super.onResume();
        if(D) Log.e(TAG, "+ ON RESUME +");

        // Performing this check in onResume() covers the case in which BT was
        // not enabled during onStart(), so we were paused to enable it...
        // onResume() will be called when ACTION_REQUEST_ENABLE activity returns.
        if (mChatService != null) {
            // Only if the state is STATE_NONE, do we know that we haven't started already
            if (mChatService.getState() == BluetoothChatService.STATE_NONE) {
              // Start the Bluetooth chat services
              mChatService.start(this);
              
              if ((address = getConnectedDevice()) != null)
              {
            	  connectDevice(address, false);
              }
            }
        }
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
		if (keyCode == KeyEvent.KEYCODE_BACK) {
			new AlertDialog.Builder(this)
				//	.setIcon(R.drawable.services)
					.setTitle(R.string.prompt)
					.setMessage(R.string.quit_desc)
					.setPositiveButton(R.string.exit,
							new DialogInterface.OnClickListener() {
								@Override
								public void onClick(DialogInterface dialog,
										int which) {
									finish();
								}
							})
					.setNegativeButton(R.string.backrun,
							new DialogInterface.OnClickListener() {
								public void onClick(DialogInterface dialog,
										int whichButton) {
									moveTaskToBack(true);
								}
							}).show();
			return true;
		} else {
			return super.onKeyDown(keyCode, event);
		}
    }
    
    
    private void setupChat() {
        Log.d(TAG, "setupChat()");
     
        // Initialize the array adapter for the conversation thread
        mConversationArrayAdapter = new ArrayAdapter<String>(this, R.layout.message);
        mConversationView = (ListView) findViewById(R.id.in);
        mConversationView.setAdapter(mConversationArrayAdapter);

        // Initialize the compose field with a listener for the return key
        mOutEditText = (EditText) findViewById(R.id.edit_text_out);
        mOutEditText.setOnEditorActionListener(mWriteListener);

        // Initialize the send button with a listener that for click events
        mSendButton = (Button) findViewById(R.id.button_send);
        mSendButton.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                // Send a message using content of the edit text widget
                TextView view = (TextView) findViewById(R.id.edit_text_out);
                String message = view.getText().toString();
                sendMessage(message);
            }
        });

        // Initialize the BluetoothChatService to perform bluetooth connections
        mChatService = new BluetoothChatService(this, mHandler);

        // Initialize the buffer for outgoing messages
        mOutStringBuffer = new StringBuffer("");
    }

    @Override
    public synchronized void onPause() {
        super.onPause();
        if(D) Log.e(TAG, "- ON PAUSE -");
    }

    @Override
    public void onStop() {
        super.onStop();
        if(D) Log.e(TAG, "-- ON STOP --");
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        
        unregisterReceiver(mStateChanged);
        
        if (isFinishing())
        {
        	if(D) Log.e(TAG, "--- finishing() ---");
        }
        
        // Stop the Bluetooth chat services
        if (mChatService != null) mChatService.stop();
        if(D) Log.e(TAG, "--- ON DESTROY ---");
    }

    private void ensureDiscoverable() {
        if(D) Log.d(TAG, "ensure discoverable");
        if (mBluetoothAdapter.getScanMode() !=
            BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {
            Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
            discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300);
            startActivity(discoverableIntent);
        }
    }

    /**
     * Sends a message.
     * @param message  A string of text to send.
     */
    private void sendMessage(String message) {
        // Check that we're actually connected before trying anything
        if (mChatService.getState() != BluetoothChatService.STATE_CONNECTED) {
            Toast.makeText(this, R.string.not_connected, Toast.LENGTH_SHORT).show();
            return;
        }

        // Check that there's actually something to send
        if (message.length() > 0) {
            // Get the message bytes and tell the BluetoothChatService to write
            byte[] send = message.getBytes();
            mChatService.write(send);

            // Reset out string buffer to zero and clear the edit text field
            mOutStringBuffer.setLength(0);
            mOutEditText.setText(mOutStringBuffer);
        }
    }

    // The action listener for the EditText widget, to listen for the return key
    private TextView.OnEditorActionListener mWriteListener =
        new TextView.OnEditorActionListener() {
        public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
            // If the action is a key-up event on the return key, send the message
            if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_UP) {
                String message = view.getText().toString();
                sendMessage(message);
            }
            if(D) Log.i(TAG, "END onEditorAction");
            return true;
        }
    };

    private final void setStatus(int resId) {
        final ActionBar actionBar = getActionBar();
        actionBar.setSubtitle(resId);
    }
    
    @TargetApi(11)
	private final void setStatus(CharSequence subTitle) {
        final ActionBar actionBar = getActionBar();
        actionBar.setSubtitle(subTitle);
    }

    // The Handler that gets information back from the BluetoothChatService
    private final Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
            case MESSAGE_STATE_CHANGE:
                if(D) Log.i(TAG, "MESSAGE_STATE_CHANGE: " + msg.arg1);
                switch (msg.arg1) {
                case BluetoothChatService.STATE_CONNECTED:
                    setStatus(getString(R.string.title_connected_to) + " " + mConnectedDeviceName);
                    mConversationArrayAdapter.clear();
                    break;
                    
                case BluetoothChatService.STATE_CONNECTING:
                	if (mConnectedDeviceName != null)
                		setStatus(R.string.title_connecting + mConnectedDeviceName);
                	else
                		setStatus(R.string.title_connecting);
                	
                    break;
                    
                case BluetoothChatService.STATE_LISTEN:
                case BluetoothChatService.STATE_NONE:
                    setStatus(R.string.title_not_connected);
                    break;
                }
                break;
                
            case MESSAGE_WRITE:
                byte[] writeBuf = (byte[]) msg.obj;
                // construct a string from the buffer
                String writeMessage = new String(writeBuf);
                mConversationArrayAdapter.add("Me:  " + writeMessage);
                break;
                
            case MESSAGE_READ:
                byte[] readBuf = (byte[]) msg.obj;
                // construct a string from the valid bytes in the buffer
                String readMessage = new String(readBuf, 0, msg.arg1);
                mConversationArrayAdapter.add(mConnectedDeviceName+":  " + readMessage);
                
                final String[] cmds = new String[1];// {"touch_down 300 900", "touch_up 300 900" };
				cmds[0] = readMessage;
		
	          /*  Thread t = new Thread(new Runnable() {
					
					@Override
					public void run() {
						// TODO Auto-generated method stub
						writeTouchDown(cmds);
					}
				});
	            
	            t.start();	*/
                
                break;
                
            case MESSAGE_DEVICE_NAME:
                // save the connected device's name
                mConnectedDeviceName = msg.getData().getString(DEVICE_NAME);
                Toast.makeText(getApplicationContext(), "Connected to "
                               + mConnectedDeviceName, Toast.LENGTH_SHORT).show();
                saveConnectedDevice(msg.getData().getString(DEVICE_ADDRESS), mConnectedDeviceName);
                break;
                
            case MESSAGE_TOAST:
                Toast.makeText(getApplicationContext(), msg.getData().getString(TOAST),
                               Toast.LENGTH_SHORT).show();
                break;
            }
        }
    };

    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if(D) Log.d(TAG, "onActivityResult " + resultCode);
        switch (requestCode) {
        case REQUEST_CONNECT_DEVICE_SECURE:
            // When DeviceListActivity returns with a device to connect
            if (resultCode == Activity.RESULT_OK) {
                connectDevice(data, true);
            }
            break;
            
        case REQUEST_CONNECT_DEVICE_INSECURE:
            // When DeviceListActivity returns with a device to connect
            if (resultCode == Activity.RESULT_OK) {
                connectDevice(data, false);
            }
            break;
            
        case REQUEST_ENABLE_BT:
            // When the request to enable Bluetooth returns
            if (resultCode == Activity.RESULT_OK) {
                // Bluetooth is now enabled, so set up a chat session
                setupChat();
            } else {
                // User did not enable Bluetooth or an error occurred
                Log.d(TAG, "BT not enabled");
                Toast.makeText(this, R.string.bt_not_enabled_leaving, Toast.LENGTH_SHORT).show();
                finish();
            }
        }
    }

    private void connectDevice(Intent data, boolean secure) {
        // Get the device MAC address
        String address = data.getExtras()
            .getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
        // Get the BluetoothDevice object
        BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
        // Attempt to connect to the device
        mChatService.connect(device, secure);
    }
    
    private void connectDevice(String address, boolean secure) {
        // Get the BluetoothDevice object
        BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
        // Attempt to connect to the device
        mChatService.connect(device, secure);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.option_menu, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        Intent serverIntent = null;
        switch (item.getItemId()) {
        case R.id.secure_connect_scan:
            // Launch the DeviceListActivity to see devices and do scan
            serverIntent = new Intent(this, DeviceListActivity.class);
            startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE_SECURE);
            return true;
/*        case R.id.insecure_connect_scan:
            // Launch the DeviceListActivity to see devices and do scan
            serverIntent = new Intent(this, DeviceListActivity.class);
            startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE_INSECURE);
            return true;*/
        case R.id.discoverable:
            // Ensure this device is discoverable by others
            ensureDiscoverable();
            return true;
        }
        return false;
    }
    
    Socket mSocket;
    PrintWriter mOs;
    BufferedReader mIs;
    
    void closeNetwork()
    {
    	if (mOs != null)
    		mOs.close();
    	
		try {
			if (mIs != null)
				mIs.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		try {
			if (mSocket != null)
				mSocket.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
    }
    
    void writeTouchDown(String[] cmds) {
    	
    	if (mSocket == null)
    	{
			try {
				mSocket = new Socket("127.0.0.1", 8777);
				mOs = new PrintWriter(mSocket.getOutputStream());
				mIs = new BufferedReader(new InputStreamReader(
						mSocket.getInputStream()));
			} catch (Exception e) {
				Log.d(TAG, "Error" + e);
			}
    	}
    	else
    	{
			String readline;
			
			for (int i = 0; i < cmds.length; i++) {
				readline = cmds[i];

				if (!readline.equals("bye")) {
					mOs.println(readline);
					mOs.flush();
					
					Log.d(TAG, "Client:" + readline);
					try {
						Log.d(TAG, "Server:" + mIs.readLine());
					} catch (IOException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
			}
    	}					
	}
    
    boolean findProcess(String name)
    {
    	boolean ret = false;
    	String s = "\n";  
    	
        try {   
            Process p = Runtime.getRuntime().exec("ps");   
            BufferedReader in = new BufferedReader(   
                                new InputStreamReader(p.getInputStream()));   
            String line = null;   
            while ((line = in.readLine()) != null) {   
                if (line.contains(name))
                {
                	ret = true;
                	break;
                }
            }   
        } catch (IOException e) {   
            // TODO Auto-generated catch block   
            e.printStackTrace();   
        }   
    	
    	return ret;
    }
    
    void saveConnectedDevice(String addr, String name)
    {
    	mDeviceAddr = addr;

    	SharedPreferences.Editor sharedata = getSharedPreferences("data", 0).edit(); 
    	sharedata.putString(DEVICE_ADDRESS, addr);
    	sharedata.putString(DEVICE_NAME, name);
    	sharedata.commit();
    }
    
    String getConnectedDevice()
    {
    	SharedPreferences sharedata = getSharedPreferences("data", 0); 
    	mDeviceAddr = sharedata.getString(DEVICE_ADDRESS, null); 
    	Log.i(TAG, DEVICE_ADDRESS + "=" + mDeviceAddr);
    	mConnectedDeviceName = sharedata.getString(DEVICE_NAME, null); 
    	Log.i(TAG, DEVICE_NAME + "=" + mConnectedDeviceName);
    	
    	return mDeviceAddr;
    }
    
    
    void startupInjectProcess()
    {
    	byte[] buffer = new byte[8192];
		InputStream is = null;
		FileOutputStream fout = null;
		try {
	/*		is = getAssets().open("input_inject");
			File f = new File("/data/data/com.invalid.android.BtInput/input_inject");
			
			if (!f.exists())
			{
				fout = new FileOutputStream(f);

				int n;
				while ((n = is.read(buffer)) >= 0) {
					fout.write(buffer, 0, n);
				}
				f.setExecutable(true);
			}
*/
			 if (findProcess("monkey --port"))
			 {
				 Log.d(TAG, "MONKEY EXIST, RETURNING...");
				 return;
			 }
			 
		
			try {
				 DataOutputStream os;
				 String command = "/system/bin/monkey --port 8777 &";// "/data/data/com.invalid.android.BtInput/input_inject &";
				 
				Process process = Runtime.getRuntime().exec("su");
				os = new DataOutputStream(process.getOutputStream());
				os.writeBytes(command + "\n");
				os.writeBytes("exit\n");
				os.flush();
				process.waitFor();
				Log.i(TAG, "exit value = " + process.exitValue());
			} catch (IOException e) {
				e.printStackTrace();
			} catch (InterruptedException e) {
				e.printStackTrace();
			}

		} finally {
			try {
				if (is != null) {
					is.close();
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
			
			try {
				if (fout != null) {
					fout.close();
				}
			} catch (IOException e) {
			}
		}
	}
 
}
